Dyfyniad APA

Kail, R. V., & Cavanaugh, J. C. (2007). Human development: A life-span view. Australia ; Belmont, CA: Thomson/Wadsworth.

Dyfyniad Arddull Chicago

Kail, Robert V., và John C. Cavanaugh. Human Development: A Life-span View. Australia ; Belmont, CA: Thomson/Wadsworth, 2007.

Dyfyniad MLA

Kail, Robert V., và John C. Cavanaugh. Human Development: A Life-span View. Australia ; Belmont, CA: Thomson/Wadsworth, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.